Year Number 2007-01-01 1276.1196 2008-01-01 1761.8164 2009-01-01 1947.7940 2010-01-01 2007.3443 2011-01-01 1977.9090 2012-01-01 2049.4169 2013-01-01 2089.7331 2014-01-01 2157.9789 2015-01-01 2207.9355 2016-01-01 2231.9632